1. Sunlight irradiation method: in the sun 1 hour is enough. Note that in the summer with strong sunshine, some colored crystals, such as amethyst, topaz, powder crystal, etc., are not suitable for this method and will cause fading.
2. Salt water degaussing method: soak the crystal in coarse salt (big salt) water for 3 to 4 hours, then clean it and air dry naturally. Note: This method is not applicable to tourmaline, calcite, fluorite and other mineral gems.
3. Tap water washing method: put the crystal under the tap and wash it for 5 to 10 minutes. Tap water is rootless water, which is most suitable for degaussing and purifying various crystals.
4. Pure fragrance degaussing method: Purify with sandalwood, agarwood, or ordinary fragrance, put it next to the crystal after ignition, and degaussing it after complete combustion.
5. Temple fire method: Go to the temples, temples, palaces and temples dedicated to the righteous god and put the crystal on their incense burners.
6. Degaussing method of crystal cluster and crystal cavity: put the crystal into a larger crystal cavity or crystal cluster for degaussing. The effect of this method is of course the best.